NIH study at Stanford says convalescent therapy doesn't work

[hlthe2b]

1. It is not clear that they were able to "standardize" the antibodies available via the convalescent

plasma. Given we still "lump" all neutralizing antibodies (without identifying the one or more most important to combatting COVID-19 and especially the delta variant currently at different phases of infection--monoclonal antibody products, notwithstanding) and have likewise NOT identified the threshold levels of antibody necessary for effective combatting of COVID-19 and especially the delta variant at different phases of infection, this brings up a lot of questions.

Bottom line, I think in future years as we acquire more knowledge of the immunology evolution in natural infection versus those receiving passive antibody (plasma or monoclonal antibody treatments) and active antibody (vaccines), we will look on this study as very limited and perhaps even invalid.

That said, I would have loved to see a third arm of this study with a monoclonal antibody product administered in comparison.